620896219164 has 36 divisors (see below), whose sum is σ = 1690217486776. Its totient is φ = 191044990368.

The previous prime is 620896219133. The next prime is 620896219171. The reversal of 620896219164 is 461912698026.

620896219164 is a `hidden beast` number, since 6 + 2 + 0 + 8 + 9 + 621 + 9 + 1 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×620896219164² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 620896219164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 663350194 + ... + 663351129.

Almost surely, 2^620896219164 is an apocalyptic number.

It is an amenable number.

620896219164 is an abundant number, since it is smaller than the sum of its proper divisors (1069321267612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620896219164 is a wasteful number, since it uses less digits than its factorization.

620896219164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326701346 (or 1326701341 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 620896219164 in words is "six hundred twenty billion, eight hundred ninety-six million, two hundred nineteen thousand, one hundred sixty-four".